The U.S. has now distributed a total of 4 million COVID-19 vaccine doses over the last three weeks. But the U.S. and Europe are still experiencing a slowdown of the vaccination rollout. (AP)

Amazon, Berkshire Hathaway and JPMorgan are ending their joint healthcare venture Haven Health next month. The company’s shutdown highlights difficulties in creating widespread change to the U.S. healthcare system. (The Wall Street Journal)

The Food and Drug Administration has set a priority review schedule for diabetes drug Teplizumab, with a July 2021 PDUFA date. If it gains approval, Teplizumab would be the first disease-modifying therapy for type 1 diabetes. (Endpoints News)

British health officials are debating different vaccine distribution options in an effort to get as many people vaccinated as soon as possible. But some scientists note there’s not enough research to support whether longer intervals between doses – or two unmatching vaccine doses – works. (STAT)

Health insurer Centene is buying Magellan Health for $2.2 billion, with the goal of expanding mental health services. Centene CEO Michael Neidorff said there’s a “critical need” to integrate physical and mental health, especially in light of the pandemic. (Bloomberg)